Re: LF: Re: Turbine magnets

[Andy Talbot <andy.g4jnt@gmail.com>]

Surely if the magnetic field leaked that much, the generators would suffer efficiency.  

They are designed as closed magnetic circuits, with all the field lines closely confined in iron, with small air gaps

 

Andy

'jnt

 

On 22 September 2011 21:07, Hugh M0WYE <m0wye@radiouk.com> wrote:

Seems unlikely that the magnetism would reach that far to me - the magnetic field would be no different to any other large generating set - they are just an ordinary alternator driven through a gearbox.

If they did affect magnetic compasses you would have thought that the place you would really notice it would be around the coast, with small boats sailing in amongst them.

Although they look as if they are turning slowly, they can't do many rpm before the tips of the blades go supersonic, as the blades are many 10s of metres long.

Over what distance did you notice the magnetic effect? perhaps I could get down to the ones on Romney Marsh, here in Kent and see if they have any effect on a compass needle.

 

The moving blades can affect radio reception for people living nearby, although I've not noticed this myself.

 

73

Hugh M0WYE

----- Original Message -----

From: mal hamilton

To: rsgb

Sent: Thursday, September 22, 2011 5:09 PM

Subject: LF: Turbine magnets

Great for LF!!!!!!!!!!!!!

 

Experience

 

Driving to Gleneagles in Scotland last weekend my car magnetic compass was reading backwards and erratic and I wondered why.

The hills es mountain tops are covered with WIND TURBINES,  hugh beasts and only turning slowly, cannot be producing much electric.

however thinking about it I have concluded that the strong MAGNETS in the turbines must effect a magnetic compass,  possible aeroplanes as well except they are flying very high, might also have an influence on GPS frequencies and navigation in these areas

I must say these hugh Monsters strewn all across the Scottish mountain tops and countryside spoils the scenery.

 de Mal/G3KEV